Improvement in maghineey foe feinting yarn



y gatteo tstealstent @frn JOHN Fos-fran, or PAWTUGKET, RHODEISLAND.y

LettersPatent No. 78,273, dated .MayT 26,186@

IMPNQVEMNNT INMAGHINBR'Y `ron PRINTING YANN.

l dln rlnhulr rfrrreh in in that @fritas atcnt mit mating am vat thetime.

-'.lO ALL WHOM IT MAY CONCERN:

Be it knownthat I, JonN FOSTER, of Pawtucket, in the countyotProvidence,van'd State of, Rhode Island, have invented 'certain new anduseful Improvements in Machines for Printing Yarns; and I do herebydeclare that the following specification, taken in connection with thedrawings making a part of the same, is n full, clear, and exactdescription thereof.- 'n i i Figure 1 shows an enlarged section of theprinting-rollers,'aud an elastic blanket combined therewith.

i Figure 2 is a side View of the'machine for printing yarn, with theinstrumentapplied.

Figure 3 is a transverse -'section of the same. i

The invcntionvhereindescribed appertans to that class of machines whichare used for printing Worsted and other yarns in colors. Such machineshave long been k'nown and used, bothlfo'r printingyarns inthe hank andby the single thread. i I V 'Y Until a. recent date these machinesconsisted simply of a pair of `iluted roller's, each of whichwassupplied with-color from a color-box, in a way well understood amongp'rinters. i The strands of yarn, being made to travel between thesurface of such uted rollers, and `in a line tangential to` such`surfaces, received'an imprint from the ribs ofthe rollers upon bothsides simultaneously, the spaces upon the rollersbetween the -ribsjnotbeing illedavith coloring-matter, allowing the yarn, in its passage oversuch'spac'e'to remain of its natural color. i y

An-improvement in .machines of this character is described inthe Letters'Patent granted to EdwurdgJ', Stephens and Hiram E. Green, on the 28th`day of August, A. D. 186@ which consists in the substitution cfacylinder with a plainor true surface for one of the luted rollersprev-iously'employcd, whereby the injurious eil'ect upon the' yarn fromthe natural 'cuttingfaction ot'V a pair ottluted rollers .is avoided.While, however, this advantage is gained, an evil of another kind 4isintroduced, The smooth surface of thecylinder, being-covered withcoloring-mattc r, smears slightly with color those parts of the yarnwhich arein'tcnded to be leftwhte, and which, in .thc passage of ,theyarn through the machine, come over against the spaces bctiv'een theribs of the dated rollers.' This smntting 'of the whit-e portiondeprives the yarn, when finished, of the ngreeable'eect. of decidedcontrast in color which it is the objectof th'erprinting'process toaccomplish. i

My inventionyproprietes to Vfurnish a means for retaining theadvantageswhich result from the use of o. pair of iluted rollers, without theattendantill eects which accompany the use of such rollers when, byreason of any Want of accuracy in their adjustment to each other, theyexerta grinding or eu.tting-action.

Such invention consists in combining, with a pair of ilu-ted rollers,arranged relatively to cach other in the well-known way,va.n elastic oryielding cushion, which modifies Athe action of such'rollers, landupou.whieh, instead of upon, the yarn to he printed, the grindingeli'ect oi the rollers is mainly expended.

In the drawings, A-A, ge. l and 3, represent-a. pair of iluted rollers,whieh'nre geared together, as shown at tta', iig. 2. They; are mountedin bearings, upon suitable frame, B, in themsual manner.. The roller Aobtains-its coloring-matter from the fnrnishingroller, G, whichfruns in`a colobbox, .D, supplied with the requisite material, in a-way'familiarto all printers of cloth. This furnishingroller is driven by the spurgeawheel b, as shown at fig. 2. Y n

A second color-box is shown at E, tig. 3, and also a secondfurnishing-roller, F, the eil'ect of which willA presentlybe explained.

The two iluted rollers A A are placed far enough apart to give .room foran endless elastic or yielding apron, G, similar in material andcharacter to a calico-printers blanket, which passes around one of thetinted rollers,

. A,'ad in this instance is arrangedto vtravel over the guiding-rollersH andH, arranged n's shown, iig. 3. This blanket or apron, which may beof combined rubber and cloth, 'or other equivalent material of ayielding character, and possessing elasticity, performs in the machinetwo functions, one of which is to protectithe'yarn from injury from therollers by supplying a'yelding cushion, against which the yarn shallbear as it is undergoing the printing process, and which,bcing'intcrpos'ed between the cutting-edges of the ribs of theprintingrollers, sustains the abrasion which, without this device, wouldo'ccnr to the yarn. The other function which the-apron performs is thatof a. color-carrier, to enable ther-ibs of the' roller A, which itsurrounds, to make, by pressure against it,'a print upon the back sideof the yarn, simultaneously with the4 making of theprnt upon the frontside of the yarn by the direct aetion'of the ribs of the roller A.

The apron G is supplied with coloring-matter from the color-box E, bymeans oi ,th'e furnishing-roller F, as, from the arrangement shown inthedrawin'glg. 3, will'be now readily understood.

Motion being given te one-of the rollers A A by a belt passing aroundthe pulley upon the roller-shaft,

the whole train will be put into operation, and the guiding-roller Hwill be made, through the intermediate gear I, to revolve at the samespeed'as the printing-rollers, the spur-gear c having the Sahne 'numberof teeth as the gear a. Y v l The yarn to be printed is conducted fromthe reel upon which it is wound underneath the roller-beam J, and fromthence 'upward inu. straight line, tangential to the surfaces of theprinting-rollers, to a. convenient point for delivery. l

Referring to iig. l, where au enlarged view of the printing-rollers isshown, the advantage oi' the endless apron G as a means for adapting apair of iuted rollers to practical use, and of preserving the advantageswhich belong to them, is seen. The apron naturally sags into the spacesbetween the ribs. of the roller A', or at least lies in the line of thechord of thc'are of the-circle described between the edges of the ribs,Iinstead of travelling in the are of a true circle, consequeutly'thecoloring-matter Aupon such-apron willtbe less likely to smut theportions of the yarn/.intended to be left white. g

What I claim as my invention, and desirev to secure by Letters Patent,is-

The combination, With a pair of i'luted or grooveci rollers A A', in amachine for printing yarn or other material upon both sides, of anelastic apron, Gr, or its equivalent, substantially as'deseribed for thepurposes specified.

` JGHN FOSTER. Witnesses:

JOHN D. TnUns'roN, JAMES M. CosGuoVE.

